. >> i talked to author dana coyle who had written a book, one of the things he said about tyler hamilton in getting tyler to talk about his own doping. someone who has lied for so long, can't tell the full truth. it comes out in drips and drabs. he felt this is what we were witnessing with lance armstrong. it wasn't smart to give such a big interview as the first because the truth -- he's not able to tell the full truth because he's still saying he's a bully but he wasn't saying he was directly pressuring anybody on his team. >> he had to be careful because he still has some liability legal and civil liability, and he was probably coached not to put too much out there that might be thrown back in his face in a court of law. he's already lost tens of millions of dollars in endorsements and potential earnings. and the other aspect of this is there are going to be some people who are skeptical even if he's largely telling the truth now. they're going to say he's only taking this course when every other avenue is closed off, when he has no plausible defense left. >> and it remains a question